TAILIEUCHUNG - Báo cáo khoa học: Invited speakers

The water permeability of biological membranes has been a long-standing problem in physiology, but the proteins responsible for this remained unknown until discovery of the aquaporin 1 (AQP1) water channel protein. Peter Agre received Nobel prize in Chemistry in 2003 for this discovery. | IFEBS Journal Invited speakers Abstracts Invited speakers I01 Please view Plenary lectures I02 Abstract missing please view Abstract Addendum I03 Aquaporin water channels in health and disease M. Amiry-Moghaddam University of Oslo Oslo Norway The water permeability of biological membranes has been a longstanding problem in physiology but the proteins responsible for this remained unknown until discovery of the aquaporin 1 AQP1 water channel protein. Peter Agre received Nobel prize in Chemistry in 2003 for this discovery. AQP1 is selectively permeated by water driven by osmotic gradients. The atomic structure of human AQP1 has been defined. Each subunit of the tetramer contains an individual aqueous pore that permits single-file passage of water molecules but interrupts the hydrogen bonding needed for passage of protons. At least 12 mammalian aquaporins have been identified and these are selectively permeated by water aquaporins or water plus glycerol aquaglyceroporins and more than 200 members of the aquaporin family have been found in plants microbials invertebrates and vertebrates. Research in the past decade has shown that aquaporins are not only involved in important physiological processes such as maintenance of body water homeostasis but are also involved in pathological conditions such as nephrogenic diabetes insipidus cataract metabolic syndrome brain edema and epilepsy. I04 Abstract missing please view Abstract Addendum I05 Electron transfer routes in photosynthetic membranes - impact on biohydrogen production E-M. Aro P. Zhang M. Eisenhut Y. Allahverdiyeva and N. Battchikova University of Turku Turku Finland Optimization of electron transfer from water to biohydrogen production in a model organism Synechocystis sp. PCC 6083 involves several steps. PSII function can be improved by introducing a proper PSII reaction center D1 protein encoded by the psbA gene family . To this end an expression of a specific psbA gene that encodes a D1 protein was detected .

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